ZCSPSTImportWizard - Multiple Users & PSTs

Did someone succeeded with the import of multiple users having multiple PST files through the Windows CLI with a XML file ?

When I try, using multiple Import elements, all I get is the DATA from the first account used imported into other accounts..

I feel most businesses are using Outlook and PSTs, so when we migrate a client it is just very time consuming to import those files, that's why I try do it from our office but as it is not possible to launch two simultaneous imports it would be at least great to be able get the whole import automatically run say during a weekend or something..

We have several Windows virtual machines we use for PST imports. That way, you can have several imports running simultaneously, limited only by the number of simultaneous Windows virtual machines you can run.

Well.. isn't it funny?! I mean, huh ok this client was only five accounts.. we have an option for another client.. 2000 accounts.. how to say.. should I just upgrade our server with more memory and get more windows licenses for virtual machines or maybe could someone from Zimbra provide a solution that makes sense ?